unprobably

adv

"unprobably" is a 10-letter English headword indexed on PlainSpell.

The verdict

“unprobably” is uncommon English (outside the top frequency list), classed as an adverb. The kind of spelling people second-guess.

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - improbably

Corpus desk

Index EN-unprobably · unprobably · English

unprobably · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "U" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for unprobably
PropertyValue
Headwordunprobably
LanguageEnglish
Part of speechAdverb
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “unprobably” in English

unprobablyfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

unprobably is uncommon English outside the top frequency list, classed as anadverb. Rarity is why readers land here mid-draft. Gloss: "improbably".

Zero misspellings are on record for unprobably in our index, a sign its spelling follows regular English conventions. Our confusable-pair dataset has no match for it, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From un- + Latin probabilis (“approvable”), from probare (“to approve”). Compare probable. The correct English form is unprobably, spelled U-N-P-R-O-B-A-B-L-Y.

Definition

  1. 1
    improbably

Etymology

From un- + Latin probabilis (“approvable”), from probare (“to approve”). Compare probable.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "unprobably"?
"unprobably" is spelled U-N-P-R-O-B-A-B-L-Y.
What does "unprobably" mean?
As an adverb, "unprobably" means: improbably
What is the origin of the word "unprobably"?
From un- + Latin probabilis (“approvable”), from probare (“to approve”). Compare probable. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list